9fc0fe377b
* wxMMedia: various fixes, WAV and AIFF should work on Linux, preparing it
for Windows.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@1692 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
101 lines
2.5 KiB
C++
101 lines
2.5 KiB
C++
// /////////////////////////////////////////////////////////////////////////////
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// Name: sndfrag.h
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// Purpose: wxMMedia
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// Author: Guilhem Lavaux
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// Created: 1997
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// Updated: 1998
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// Copyright: (C) 1997, 1998, Guilhem Lavaux
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// License: wxWindows license
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// /////////////////////////////////////////////////////////////////////////////
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#ifndef __SND_frag_H__
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#define __SND_frag_H__
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#ifdef __GNUG__
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#pragma interface
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#endif
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#ifdef WX_PRECOMP
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#include "wx_prec.h"
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#else
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#include "wx/wx.h"
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#endif
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#include "sndsnd.h"
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///
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class wxFragmentBuffer {
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protected:
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wxSound *m_iodrv;
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///
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wxUint8 m_maxoq, m_maxiq;
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///
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typedef enum {
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wxBUFFER_FREE,
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wxBUFFER_FFILLED,
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wxBUFFER_TOFREE,
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wxBUFFER_PLAYING
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} BufState;
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public:
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///
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typedef struct {
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// Local stream buffer for this fragment.
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wxStreamBuffer *sndbuf;
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// Data the driver would like to pass to the callback.
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char *user_data;
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// Buffers included in this fragment.
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wxList *buffers;
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// State of the fragment.
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BufState state;
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} wxFragBufPtr;
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protected:
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//
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wxFragBufPtr *m_optrs, *m_iptrs;
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//
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wxFragBufPtr *m_lstoptrs, *m_lstiptrs;
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//
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bool m_buf2free, m_dontq, m_freeing;
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//
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wxSoundDataFormat m_drvformat;
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public:
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wxFragmentBuffer(wxSound& io_drv);
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virtual ~wxFragmentBuffer();
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// These functions initializes the fragments. They must initialize
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// m_lstoptrs, m_lstiptrs, m_maxoq, m_maxiq.
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virtual void AllocIOBuffer() = 0;
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virtual void FreeIOBuffer() = 0;
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void AbortBuffer(wxSndBuffer *buf);
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// Find a free (or partly free) fragment.
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wxFragBufPtr *FindFreeBuffer(wxFragBufPtr *list, wxUint8 max_queue);
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// Add this sound buffer to an "OUTPUT" fragment.
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bool NotifyOutputBuffer(wxSndBuffer *buf);
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// Add this sound buffer to an "INPUT" fragment.
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bool NotifyInputBuffer(wxSndBuffer *buf);
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// Called when a fragment is finished.
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void OnBufferFinished(wxFragBufPtr *ptr);
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// Called when a fragment is full and it should be flushed in the sound card.
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virtual bool OnBufferFilled(wxFragBufPtr *ptr, wxSndMode mode) = 0;
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inline wxSndBuffer *LastBuffer() {
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wxNode *node = m_iodrv->m_buffers.Last();
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if (!node) return NULL;
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return (wxSndBuffer *)node->Data();
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}
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inline wxSndBuffer *FirstBuffer() {
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wxNode *node = m_iodrv->m_buffers.First();
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if (!node) return NULL;
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return (wxSndBuffer *)node->Data();
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}
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protected:
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void FreeBufToFree(bool force = FALSE);
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void ClearBuffer(wxFragBufPtr *ptr);
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};
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#endif
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